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Find the best SIM for your device

Explore our SIM deals

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Pay Monthly SIMs

Keep the phone you love and get all the data you need. Take your pick from our 12 and 24-month Pay Monthly SIM Only deals.

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Enjoy more data for the same price

Get up to 5x more data for up to three months, at no extra cost. With Pay As You Go Big Bundles and Rolling Plans.

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Latest Pay Monthly offers

SIM Only, for less

Great low price. Get a 24-month 100GB Classic Plan and enjoy an Extra on us for up to six months, plus more. Ends 4 Nov.

Great low price on SIM Only

Spend less on a 24-month Unlimited Classic Plan and enjoy an Extra on us for up to six months, plus more. Ends 4 Nov.

Pay As You Go SIMs

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Big Bundles

Enjoy awesome perks and great-value tariffs with unlimited minutes and texts

Rolling plans

The easiest way to pay without a contract

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Need to top up?

Find out how to top up your Pay As You Go devices

Perks for being with O2

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Data rollover

Didn’t get through all your data? Let’s keep it rolling.

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Roam freely in the EU

Unlike other major networks, we don't charge extra for EU roaming, up to 25GB

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Priority

Jump into a world of exclusive rewards and experiences. It’s our way of saying thanks for being with us.

Looking for another SIM?

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Tablet SIMs

Pick a SIM for your tablet or dongle

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Smartwatch eSIMs

Connect your cellular smartwatch with a Pay Monthly eSIM

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Mobile broadband SIMs

Stay connected while you’re on the move